| Literature DB >> 25157996 |
Akash Bhatnagar1, Young Heon Kim, Dietrich Hesse, Marin Alexe.
Abstract
A drastic change in the conductivity of strained BiFeO3 (BFO) films is observed after illuminating them with above-band gap light. This has been termed as persistent photoconductivity. The enhanced conductivity decays exponentially with time. A trapping character of the sub-band levels and their subsequent gradual emptying is proposed as a possible mechanism.Entities:
Keywords: BiFeO3; enhanced conductivity; persistent photoconductivity; strain; thermally stimulated current
Year: 2014 PMID： 25157996 DOI： 10.1021/nl502183j
Source DB: PubMed Journal: Nano Lett ISSN： 1530-6984 Impact factor: 11.189